php mailer smtp connect() failed to gmail - php

Question

I have tried to send mail through gmail. I have seen other people solutions but it didn't work for me. What is the problem in my code?
Here is my output error
2017-06-27 13:53:54 SERVER -> CLIENT: 220 smtp.gmail.com ESMTP o131sm2910537wmd.26 - gsmtp
2017-06-27 13:53:54 CLIENT -> SERVER: EHLO localhost
2017-06-27 13:53:54 SERVER -> CLIENT: 250-smtp.gmail.com at your service, [213.55.85.206]250-SIZE 35882577250-8BITMIME250-STARTTLS250-ENHANCEDSTATUSCODES250-PIPELINING250 SMTPUTF8
2017-06-27 13:53:54 CLIENT -> SERVER: STARTTLS
2017-06-27 13:53:55 SERVER -> CLIENT: 220 2.0.0 Ready to start TLS
SMTP Error: Could not connect to SMTP host.
2017-06-27 13:53:55 CLIENT -> SERVER: QUIT
2017-06-27 13:53:55
2017-06-27 13:53:55
SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting
Mailer Error: SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting
Here is the source code
date_default_timezone_set('Etc/UTC');
require 'PHPMailer/PHPMailerAutoload.php';
$mail = new PHPMailer;
$mail->isSMTP();
$mail->SMTPDebug = 2;
$mail->Debugoutput = 'html';
$mail->Host = 'smtp.gmail.com';
$mail->Port = 587;
$mail->SMTPSecure = 'tls';
$mail->SMTPAuth = true;
$mail->Username = "hajiman00#gmail.com";
$mail->Password = "xxxxxxx";
$mail->setFrom('hajiman00#gmail.com', 'Support From HITD');
$mail->addAddress('hjibril37#gmail.com', 'Hassen Jibril');
$mail->Subject = 'PHPMailer GMail SMTP test';
$mail->msgHTML("MUKERA 123");
$mail->AltBody = 'This is a plain-text message body';
if (!$mail->send()) {
echo "Mailer Error: " . $mail->ErrorInfo;
} else {
echo "Message sent!";
}